- This article is about the Francesco Rizzoli, Jr.. You may be looking for his father, Francesco Rizzoli, Sr., who his friends refer to as Frank Rizzoli.
Frankie was apparently once an amazing baseball player and was on his way to the professionals until he blew out his arm and ended up with a thrower's elbow.
In "When the Gun Goes Bang, Bang, Bang", Frankie is shot twice in the chest by a gun. Although his vest slowed the bullets, his rib broke, puncturing his chest wall and lung. Unable to get out of the precinct and to a hospital because of the armed men guarding the building, Maura is forced to perform a procedure on him with insufficient equipment and experience to make him last long enough until they can get him to a hospital. With Frankie on the verge of death, Jane shoots herself to get to Bobby so that they can finally bring Frankie to the hospital for his surgery.
In "Remember Me", Frankie finally takes his detective's exam. He goes to Maura for help to get through his anxiety and calm him down for the test. He later fears that he "bombed" the test, but ends up passing with a 96% passing score.
Frankie was promoted to Detective at the drug unit. To help with his cover, Frankie bought himself a motorcycle.
Following Frost's death, Frankie began taking night classes in computer science to improve his skills and increase his options for future promotion.
Frankie is good at reading lips, which he began trying during little league when reading the coach's lips.
Frankie looks up to Jane, his older sister, but doesn't like feeling caught in her shadow, especially as he tries to make his own way on the police force. Like all the men in Jane's life, Frankie is more protective of Jane than she would like.
Frankie seems to also have a generally good relationship with his mother, whereas Angela smothers her children with worry, Frankie is also often worried about her and tends to be overprotective of her, especially after her split with Frank, Sr.
Frankie admitted to liking Maura. Towards the end of season four, Frankie starts to minimally flirt with her. In the season finale he kisses her and leaves. By the time of the fifth season premiere, they concluded that a relationship would not work as they each considered the other to be a sibling.
Frankie and Tommy have a normal brother relationship. Both have had feelings towards Maura at one point.